Comparison of observed and inferred galaxy stellar mass function (gray points, and colored curve with 1 and 2σ envelopes, respectively) to the reference flavors of four simulations: TNG100 of the ILLUSTRISTNG project (Pillepich et al. 2018), EAGLE (Furlong et al. 2015), SHARK (Default; Lagos et al. 2018), SANTA CRUZ (Yung et al. 2019a,b), and SIMBA (Flagship; Davé et al. 2019). To note, we do not apply any artificial normalization to any model or observation. Upper limits for empty bins are shown by the horizontal gray line with an arrow. Mass incomplete measurements are not shown.